68002001 has 4 divisors (see below), whose sum is σ = 68101104. Its totient is φ = 67902900.

The previous prime is 68001991. The next prime is 68002019. The reversal of 68002001 is 10020086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10020086 = 2 ⋅5010043.

It is a cyclic number.

It is not a de Polignac number, because 68002001 - 2²² = 63807697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68002061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48515 + ... + 49896.

It is an arithmetic number, because the mean of its divisors is an integer number (17025276).

Almost surely, 2^68002001 is an apocalyptic number.

It is an amenable number.

68002001 is a deficient number, since it is larger than the sum of its proper divisors (99103).

68002001 is an equidigital number, since it uses as much as digits as its factorization.

68002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99102.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 68002001 is about 8246.3325787892. The cubic root of 68002001 is about 408.1695137759.

Adding to 68002001 its reverse (10020086), we get a palindrome (78022087).

The spelling of 68002001 in words is "sixty-eight million, two thousand, one".